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		<title>three.js webgl - materials - dynamic cube reflection</title>
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		<div id="info"><a href="http://threejs.org" target="_blank">three.js webgl</a> - materials - dynamic cube reflection<br/>Photo by <a href="http://www.flickr.com/photos/jonragnarsson/2294472375/" target="_blank">J&oacute;n Ragnarsson</a>.</div>

		<script src="../build/three.min.js"></script>

		<script>

			var camera, cubeCamera, scene, renderer;
			var cube, sphere, torus;

			var fov = 70,
			isUserInteracting = false,
			onMouseDownMouseX = 0, onMouseDownMouseY = 0,
			lon = 0, onMouseDownLon = 0,
			lat = 0, onMouseDownLat = 0,
			phi = 0, theta = 0;

			var texture = THREE.ImageUtils.loadTexture( 'textures/2294472375_24a3b8ef46_o.jpg', new THREE.UVMapping(), function () {

				init();
				animate();

			} );

			function init() {

				camera = new THREE.PerspectiveCamera( fov, window.innerWidth / window.innerHeight, 1, 1000 );

				scene = new THREE.Scene();

				var mesh = new THREE.Mesh( new THREE.SphereGeometry( 500, 60, 40 ), new THREE.MeshBasicMaterial( { map: texture } ) );
				mesh.scale.x = -1;
				scene.add( mesh );

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setSize( window.innerWidth, window.innerHeight );

				cubeCamera = new THREE.CubeCamera( 1, 1000, 256 );
				cubeCamera.renderTarget.minFilter = THREE.LinearMipMapLinearFilter;
				scene.add( cubeCamera );

				document.body.appendChild( renderer.domElement );

				//

				var material = new THREE.MeshBasicMaterial( { envMap: cubeCamera.renderTarget } );

				sphere = new THREE.Mesh( new THREE.SphereGeometry( 20, 30, 15 ), material );
				scene.add( sphere );

				cube = new THREE.Mesh( new THREE.BoxGeometry( 20, 20, 20 ), material );
				scene.add( cube );

				torus = new THREE.Mesh( new THREE.TorusKnotGeometry( 20, 5, 100, 25 ), material );
				scene.add( torus );

				//

				document.addEventListener( 'mousedown', onDocumentMouseDown, false );
				document.addEventListener( 'mousewheel', onDocumentMouseWheel, false );
				document.addEventListener( 'DOMMouseScroll', onDocumentMouseWheel, false);
				window.addEventListener( 'resize', onWindowResized, false );

				onWindowResized( null );

			}

			function onWindowResized( event ) {

				renderer.setSize( window.innerWidth, window.innerHeight );
				camera.projectionMatrix.makePerspective( fov, window.innerWidth / window.innerHeight, 1, 1100 );
			}

			function onDocumentMouseDown( event ) {

				event.preventDefault();

				onPointerDownPointerX = event.clientX;
				onPointerDownPointerY = event.clientY;

				onPointerDownLon = lon;
				onPointerDownLat = lat;

				document.addEventListener( 'mousemove', onDocumentMouseMove, false );
				document.addEventListener( 'mouseup', onDocumentMouseUp, false );

			}

			function onDocumentMouseMove( event ) {

				lon = ( event.clientX - onPointerDownPointerX ) * 0.1 + onPointerDownLon;
				lat = ( event.clientY - onPointerDownPointerY ) * 0.1 + onPointerDownLat;

			}

			function onDocumentMouseUp( event ) {

				document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
				document.removeEventListener( 'mouseup', onDocumentMouseUp, false );

			}

			function onDocumentMouseWheel( event ) {

				// WebKit

				if ( event.wheelDeltaY ) {

					fov -= event.wheelDeltaY * 0.05;

				// Opera / Explorer 9

				} else if ( event.wheelDelta ) {

					fov -= event.wheelDelta * 0.05;

				// Firefox

				} else if ( event.detail ) {

					fov += event.detail * 1.0;

				}

				camera.projectionMatrix.makePerspective( fov, window.innerWidth / window.innerHeight, 1, 1100 );

			}

			function animate() {

				requestAnimationFrame( animate );
				render();

			}

			function render() {

				var time = Date.now();

				lon += .15;

				lat = Math.max( - 85, Math.min( 85, lat ) );
				phi = THREE.Math.degToRad( 90 - lat );
				theta = THREE.Math.degToRad( lon );

				sphere.position.x = Math.sin( time * 0.001 ) * 30;
				sphere.position.y = Math.sin( time * 0.0011 ) * 30;
				sphere.position.z = Math.sin( time * 0.0012 ) * 30;

				sphere.rotation.x += 0.02;
				sphere.rotation.y += 0.03;

				cube.position.x = Math.sin( time * 0.001 + 2 ) * 30;
				cube.position.y = Math.sin( time * 0.0011 + 2 ) * 30;
				cube.position.z = Math.sin( time * 0.0012 + 2 ) * 30;

				cube.rotation.x += 0.02;
				cube.rotation.y += 0.03;

				torus.position.x = Math.sin( time * 0.001 + 4 ) * 30;
				torus.position.y = Math.sin( time * 0.0011 + 4 ) * 30;
				torus.position.z = Math.sin( time * 0.0012 + 4 ) * 30;

				torus.rotation.x += 0.02;
				torus.rotation.y += 0.03;

				camera.position.x = 100 * Math.sin( phi ) * Math.cos( theta );
				camera.position.y = 100 * Math.cos( phi );
				camera.position.z = 100 * Math.sin( phi ) * Math.sin( theta );

				camera.lookAt( scene.position );

				sphere.visible = false; // *cough*

				cubeCamera.updateCubeMap( renderer, scene );

				sphere.visible = true; // *cough*

				renderer.render( scene, camera );

			}

		</script>

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